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Full text of "Atari Mega STe Schematic (1986)(Atari)"

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CCLK 



C201 
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Stuffed irt ?^w Systems only 



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CML/ WHErt 0204 IS 

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32.084984 HHt 



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HCS SB'O [3HHZ) PARTS MUST Bg USED ! 



MIDI OUT 



MIDI IN 



KH2500 




PARAULfL 
PORT 



OBAP 



SERIAL 
POhT 



Atari Corooratton 



MEGA STE 



crictNfga- JOHN HOAroM 



■mi 






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VCC 




PWRGOOQ 



4011 



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vneis 




Atari Corporacion 

tl&6 SorrtgAS Atf«. Sunnvwalt. Ca 94Q86 



MEGA STE 



ClMlff-l«f 

ENGXriCER: J0M4 HOnrCN 



1 1 



VCC 





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SluMeO in riON-MoauUca'- Mr^iqnj OM,^ 



Atari Corporation 

1198 BoTtqAfl Ave. Swnnyy«la, CA 94089 



h£GA STE 



Cf f«ri«-f i« 

eHGINCER: JOHN HORTON 

tflM ISHg gT S T 



2 

T 



VCC 



THH 74LS02 WAS AOOEO TO FIX THe ZQUtiO 
ZXTX HOlO PPOBLcH MhlCH OCCU^^S WITH 
ST-4U/ (SHIFTEHSI OUOcR ThAM fi£V. D 




VCC VCC VCC VCC 

CB49 T C6S0 _J_ Cas I J_ C6S2 
O.luF -T-O.ImF T'Haf rpO.luF 









Atari Coroopdcion 

U96 Borreq*! A^e. Sunn/v«lt. Ca 94066 



MEGA STE 



'sns 



rnff 



ENGINEEH: JOHN hOnrON 



"SFv 
2 



L aa. tgya i anger ft'o^rr 



1 



vcc 



XRASO 




~1 




C709 



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Z \^^^ 






4.7\dft 



141 lYtUS. 




VCC 

T 

C70S 



gw ITCMFS HUST g^ IM QHQER! 



;(8UTT0N 



Atari Corporacion 

1196 Borr*g«s Ay«. Sunnyvcli. CA 940as 



MEGA 5TE 



5TIF 


TJaTT 



^ODT 



APffTC 



Cllf«l#-I## 

CMGI^fCEn: JOHN HQHTOH 

30. i99fl 15*i6gr 7 aT 



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2 



ACOR 



XOTACK 




vcc 



PIW 14 



vcc 



VCC 



74LS04 :^ 



PIH 7 




cao3 

. Ibf 



C804 

=r . luF 





ceos 

O.luF 



ATAAl CCnPOnATION 
1 ISA aCfWEQAS. SUNNYVALE. CA 9400e 



MEGA STE 






CODE {Nt^46EA: C*«##*«-*«* 




3 Op 



T57 



AH4 



vCU 




lClk 



XOTACK 



</AS 




I C903 



iCC 



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noTF tha; jgoi-34 
IS QPFM CN n€ 

nev. I PC eoAHo. 

IT SHOULC 8S 
JUMPERFO TO U9'J4-19 



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VCC 



T 



C313 




XBERR 



ATARI CORPORATION 
1198 SOfWEGAS. SUNNYVALE. CA 94086 



MEGA STE 







roDT 



NUMOER: C*««««***«* 

eNGlH££R: JCHN HQftrON 




It 



>«Auy 



MAIU 



vcc 



vcc 




SERIAL 
POflT B 



PIN 14 ^ 



ATARI CORPORA r ION 
1196 aOAREGAS. SUNHTVALe. CA 9^066 



MEGA STE 



rczt 





ENGINEER: JOHN HQWrON 



Sf7 



UBOl NEED NOT BE INSTALLED IF UB02 IS NOT PRESENT 



VCC 



VCC 



VCC ~]^CEOl 



CUKIS 




VCC 



VCC 



CB03 
^0 . luf 



CB04 
^0. luF 



K^ 



ATARI COflPOflATION 

1196 BORAEGAS. SUNNTV&lC. CA 94086 



MEGA STE 







aPSTTC 



NUMBER: C»**»**'**9 

ENGiNeea- johh horfon 



3fl. iflao \'lUkk\ ii flf TT